Standard PLC Units ..................................................................................................2–4
Built-in I/O (Standard PLC Units) .............................................................................2–4
Analog PLC Units .....................................................................................................2–5
Built-in I/O (Analog PLC Units) ................................................................................. 2–5
Ethernet Basic PLC Units ...........................................................................................2–6
Built-in I/O (Ethernet Basic PLC Units) ..................................................................... 2–6
Ethernet Standard PLC Units ....................................................................................2–7
Built-in I/O (Ethernet Standard PLC Units) ...............................................................2–7
Ethernet Analog PLC Units .......................................................................................2–8
Built-in I/O (Ethernet Analog PLC units) ...................................................................2–8
Communication Ports .............................................................................................2–9
Memory ..................................................................................................................2–9
I/O Modules ............................................................................................................2–10
Power Supply .........................................................................................................2–13
Programming Software ........................................................................................... 2–14
PC Requirements .................................................................................................... 2–14
Data Types, Memory, and Numbering System ......................................................2–15
Data Types . .......................................................................................................... 2–15
Memory Types .......................................................................................................2–16
I/O Numbering System ..........................................................................................2–18
PLC Operation .........................................................................................................2–19
Introduction ...........................................................................................................2–19
PLC Operating System ...........................................................................................2–19
PLC Operating Modes ............................................................................................ 2–20
Stop Mode ............................................................................................................ 2–20
Run Mode .............................................................................................................2–20
Read Inputs ........................................................................................................... 2–21
Service Peripherals and Force I/O ..........................................................................2–21
Update System Control (SC) Relays and System Data (SD) Registers ..................... 2–22
Solve Application Program ....................................................................................2–22
Write Outputs .......................................................................................................2–22
Diagnostics . ..........................................................................................................2–22
Power Budgeting ..................................................................................................... 2–23
What is Power Budgeting? .....................................................................................2–23
Power Budget Calculation ......................................................................................2–24
CLICK PLC Hardware User Manual, 6th Edition, Rev. F – C0-USER-M
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